WO2008152167A1 - Fastening device for coupling of blades in agricultural cultivation machines - Google Patents

Fastening device for coupling of blades in agricultural cultivation machines Download PDF

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Publication number
WO2008152167A1
WO2008152167A1 PCT/ES2008/000411 ES2008000411W WO2008152167A1 WO 2008152167 A1 WO2008152167 A1 WO 2008152167A1 ES 2008000411 W ES2008000411 W ES 2008000411W WO 2008152167 A1 WO2008152167 A1 WO 2008152167A1
Authority
WO
WIPO (PCT)
Prior art keywords
blade
blades
rotating plate
coupling
machines
Prior art date
Application number
PCT/ES2008/000411
Other languages
Spanish (es)
French (fr)
Inventor
Carles Arnabat Castellvi
Original Assignee
Digger Tools, S.L.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Digger Tools, S.L. filed Critical Digger Tools, S.L.
Priority to EP08787593A priority Critical patent/EP2156722A4/en
Priority to US12/664,076 priority patent/US8037943B2/en
Priority to BRPI0811327A priority patent/BRPI0811327A2/en
Priority to CA2690660A priority patent/CA2690660C/en
Publication of WO2008152167A1 publication Critical patent/WO2008152167A1/en
Priority to MA32457A priority patent/MA31469B1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B33/00—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs
    • A01B33/08—Tools; Details, e.g. adaptations of transmissions or gearings
    • A01B33/14—Attaching the tools to the rotating shaft, e.g. resiliently or flexibly-attached tools
    • A01B33/142—Attaching the tools to the rotating shaft, e.g. resiliently or flexibly-attached tools the rotating shaft being oriented horizontally

Definitions

  • Fixing arrangement for the coupling of blades in agricultural cultivation machines - Descriptive Memory.
  • the purpose of the present invention patent application is to register a fixation arrangement for the coupling of blades in agricultural cultivation machines, especially machines for milling or motor cultivation type, which incorporates notable innovations and advantages over current ones. fixing device configurations used for the same purpose. More specifically, the arrangement of the invention allows the exchange and / or replacement of the tillage knife with the simple manual operation of the user-operator, discarding the use of accessory tools such as specific keys, hammers, etc., commonly used for this finish.
  • agricultural cultivation machines especially milling or motor cultivating machines, comprise a frame provided with a plurality of rotating plates on which blades are fixed or joined.
  • the cutting movement of said blades is rotary since the blades are arranged on the diameter of a rotating plate integral to a transmission shaft of said rotating or rotating movement.
  • the fixing arrangement for the coupling of blades in agricultural cultivation machines object of the present registration, resolves the aforementioned drawbacks, also providing other additional advantages that will be apparent from the description that follows.
  • the arrangement of the invention is especially designed for milling machines or rotary cultivators, where the blades are linked on a rotating plate of the machine in question.
  • the cutting movement of said blades is rotary since these are arranged on the diameter of a rotating plate integral to a transmission shaft of said rotating or rotating movement.
  • said arrangement is characterized by the fact that it comprises an intermediate fixing element, formed by a solid body, which joins the blade with the rotating plate; said intermediate fixing element being provided with fixing means for its connection to the rotating plate; of guide means for the insertion of the blade in the intermediate fixing element; and of at least one through hole transversely with respect to the direction of the guide means, intended for the insertion of a removable pin which, in an insertion position of said pin, acts as a retention element of the blade with respect to the element intermediate fixing.
  • the guide means for inserting the blade consist of at least two facing grooves partially arranged perimetrically on the contact face of the solid body with the blade. In such a way that the blade is inserted inside the guide means except for the area of attack or use for tillage.
  • the fixing means of the intermediate fixing element to the rotating plate consist of at least one hole for the insertion of a fixing screw that links the intermediate fixing element to the rotating plate.
  • an arrangement is obtained that allows the manual exchange, without the use of auxiliary tools (keys, hammers, etc.), of the tillage knife.
  • Figure 1 corresponds to a perspective view of the intermediate fixing element according to the characteristics of the invention
  • Figure 2 corresponds to a perspective view of the pin of the invention
  • Figure 3 corresponds to a perspective view of the intermediate fixing element shown in the first figure in a position of use on the rotating plate.
  • a preferred but not limiting embodiment of the invention can be observed therein, which consists of a fixing arrangement for the coupling of blades in agricultural cultivation machines, especially milling or rotary cultivation machines.
  • the blades are mounted on the diameter of a turntable, hence, the fact that the cutting of the blades is rotary, and said said plate being integral to a transmission shaft of said rotating or rotary moving.
  • the arrangement of the invention is characterized by the fact of comprising an intermediate fixing element (1), formed by a solid body, which joins the blade (2) with the rotating plate (7); said intermediate fixing element (1) being provided with fixing means (3) for linking to the rotating plate (7); of guide means (4) for the insertion of the blade (2) in the intermediate fixing element (1); and of at least one hole (5) through transversely with respect to the direction of the guide means (4), intended for the insertion of a removable pin (6) which, in an insertion position of said pin (6), acts as a retention element of the blade (2) with respect to the intermediate fixing element (1).
  • the guide means (4) for the insertion of the blade (2) consist of at least two facing grooves partially arranged perimetrically on the contact face of the solid body with The blade (2).
  • the fixing means (3) of the intermediate fixing element (1) to the rotating plate (7) consist of at least one hole for the insertion of a fixing screw that links the intermediate fixing element ( 1) to the rotating plate.
  • an arrangement is obtained that allows the exchange or replacement of the blade, either by wear or breakage, with the simple manual action on the pin that acts as a retention element.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Soil Working Implements (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Plural Heterocyclic Compounds (AREA)

Abstract

Fastening device for coupling of blades in agricultural cultivation machines, in particular, tilling machines such as rotary tillers, characterized in that it comprises an intermediate fastening element (1), formed by a solid body, which joins the blade (2) to the rotary plate (7); said intermediate fastening element (1) is equipped with fastening means (3) for linking same to the rotary plate (7); guiding means (4) for insertion of the blade (2) into the intermediate fastening element (1); and at least one through hole (5), extending transversely with respect to the direction of the guiding means (4) and intended for insertion of an extractable bolt (6) which, when said bolt (6) is inserted, acts as a retaining element for the blade (2) with respect to the intermediate fastening element (1). Said arrangement enables the user/operator to manually replace and/or reset the tilling blade, avoiding any need for accessory tools commonly used for this purpose.

Description

Disposición de fijación para el acoplamiento de cuchillas en máquinas de cultivo agrícolas- Memoria Descriptiva. Objeto de Ia invención. La presente solicitud de Patente de Invención tiene por objeto el registro de una disposición de fijación para el acoplamiento de cuchillas en máquinas de cultivo agrícolas, en especial, maquinas para Ia labranza tipo fresadoras o motocultivadoras, que incorpora notables innovaciones y ventajas frente a las actuales configuraciones de dispositivos de fijación empleados para un mismo fin. Más concretamente, Ia disposición de Ia invención permite el intercambio y/o reposición de Ia cuchilla de labranza con Ia simple actuación manual del usuario- operario, descartándose el uso de herramientas accesorias tales como llaves específicas, martillos, etc., empleados comúnmente para este fin. Fixing arrangement for the coupling of blades in agricultural cultivation machines - Descriptive Memory. Object of the invention. The purpose of the present invention patent application is to register a fixation arrangement for the coupling of blades in agricultural cultivation machines, especially machines for milling or motor cultivation type, which incorporates notable innovations and advantages over current ones. fixing device configurations used for the same purpose. More specifically, the arrangement of the invention allows the exchange and / or replacement of the tillage knife with the simple manual operation of the user-operator, discarding the use of accessory tools such as specific keys, hammers, etc., commonly used for this finish.
Antecedentes de Ia invención. En Ia actualidad, las máquinas de cultivo agrícola, en especial, maquinas de labranza tipo fresadoras o motocultivadoras, comprenden un bastidor dotado de una pluralidad de platos rotativos sobre los cuales se fijan o unen cuchillas.Background of the invention. At present, agricultural cultivation machines, especially milling or motor cultivating machines, comprise a frame provided with a plurality of rotating plates on which blades are fixed or joined.
Particularmente, el movimiento de corte de dichas cuchillas es rotativo puesto que las cuchillas están dispuestas sobre el diámetro de un plato giratorio solidario a una eje de transmisión de dicho moviendo giratorio o rotativo.Particularly, the cutting movement of said blades is rotary since the blades are arranged on the diameter of a rotating plate integral to a transmission shaft of said rotating or rotating movement.
Se conoce, que las citadas cuchillas se unen a los platos rotativos mediante tornillos comunes, Io cual implica el uso de herramientas auxiliares para el cambio o intercambio de las mismas, o bien, tornillos con propiedades especiales, expresamente diseñados para esta función, y que requieren de un tipo de herramienta específica para su manipulación. Descripción de Ia invención.It is known that the aforementioned blades are attached to the rotating plates by means of common screws, which implies the use of auxiliary tools for changing or exchanging them, or, screws with special properties, expressly designed for this function, and that They require a specific type of tool for handling. Description of the invention.
La disposición de fijación para el acoplamiento de cuchillas en máquinas de cultivo agrícolas objeto del presente registro, resuelve los inconvenientes anteriormente citados, aportando, además, otras ventajas adicionales que serán evidentes a partir de Ia descripción que se acompaña a continuación.The fixing arrangement for the coupling of blades in agricultural cultivation machines object of the present registration, resolves the aforementioned drawbacks, also providing other additional advantages that will be apparent from the description that follows.
La disposición de Ia invención está especialmente ideada para máquinas de cultivo tipo fresadoras o rotocultivadoras, donde las cuchillas están vinculadas sobre un plato rotativo propio de Ia máquina en cuestión. En particular, el movimiento de corte de las citadas cuchillas es rotativo puesto que estas están dispuestas sobre el diámetro de un plato giratorio solidario a una eje de transmisión de dicho moviendo giratorio o rotativo.The arrangement of the invention is especially designed for milling machines or rotary cultivators, where the blades are linked on a rotating plate of the machine in question. In particular, the cutting movement of said blades is rotary since these are arranged on the diameter of a rotating plate integral to a transmission shaft of said rotating or rotating movement.
Para ello, y de forma más concreta dicha disposición se caracteriza por el hecho de comprender un elemento de fijación intermedio, formado por un cuerpo macizo, que une Ia cuchilla con el plato rotativo; estando provisto dicho elemento de fijación intermedio de unos medios de fijación para su vinculación al plato rotativo; de medios de guía para Ia inserción de Ia cuchilla en el elemento de fijación intermedio; y de al menos un orificio pasante transversalmente con respecto a Ia dirección de los medios de guía, destinado a Ia inserción de un pasador extraíble que, en una posición de inserción de dicho pasador, actúa como elemento de retención de Ia cuchilla respecto al el elemento de fijación intermedio.For this, and more specifically, said arrangement is characterized by the fact that it comprises an intermediate fixing element, formed by a solid body, which joins the blade with the rotating plate; said intermediate fixing element being provided with fixing means for its connection to the rotating plate; of guide means for the insertion of the blade in the intermediate fixing element; and of at least one through hole transversely with respect to the direction of the guide means, intended for the insertion of a removable pin which, in an insertion position of said pin, acts as a retention element of the blade with respect to the element intermediate fixing.
De acuerdo con las características citadas, los medios de guía para Ia inserción de Ia cuchilla consisten en al menos dos ranuras enfrentadas dispuestas parcialmente de forma perimetral sobre Ia cara de contacto del cuerpo macizo con Ia cuchilla. De tal modo que Ia cuchilla queda inserta en el interior de los medios de guía a excepción de Ia zona de ataque o uso para Ia labranza. En base a las características descritas, los medios de fijación del elemento de fijación intermedio al plato rotativo consisten en al menos un taladro para Ia inserción de un tornillo de fijación que vincula el elemento de fijación intermedio al plato rotativo.In accordance with the aforementioned characteristics, the guide means for inserting the blade consist of at least two facing grooves partially arranged perimetrically on the contact face of the solid body with the blade. In such a way that the blade is inserted inside the guide means except for the area of attack or use for tillage. Based on the described characteristics, the fixing means of the intermediate fixing element to the rotating plate consist of at least one hole for the insertion of a fixing screw that links the intermediate fixing element to the rotating plate.
Ventajosamente, y gracias a las particularidades de Ia invención descrita, se obtiene una disposición que permite el intercambio manual, sin uso de herramientas auxiliares (llaves, martillos, etc.), de Ia cuchilla de labranza.Advantageously, and thanks to the particularities of the described invention, an arrangement is obtained that allows the manual exchange, without the use of auxiliary tools (keys, hammers, etc.), of the tillage knife.
Permite el intercambio o reposición de dicha cuchilla por desgaste o rotura de Ia misma con Ia simple actuación manual sobre el pasador que actúa como elemento retenedor. Para completar Ia descripción que seguidamente se va a realizar y con objeto de ayudar a una mejor comprensión de sus características, se acompaña a Ia presente memoria descriptiva, de un juego de planos en cuyas figuras, de forma ilustrativa y no limitativa, se representan los detalles más significativos de Ia invención.Allows the exchange or replacement of said blade due to wear or breakage thereof with the simple manual action on the pin that acts as a retaining element. To complete the description that is going to be carried out below and in order to help a better understanding of its characteristics, the present descriptive report is accompanied by a set of drawings in whose figures, in an illustrative and non-limiting manner, the most significant details of the invention.
Breve descripción de los diseños. La figura 1 corresponde a una vista en perspectiva del elemento de fijación intermedio de acuerdo con las características de Ia invención;Brief description of the designs. Figure 1 corresponds to a perspective view of the intermediate fixing element according to the characteristics of the invention;
La figura 2 corresponde a una vista en perspectiva del pasador de Ia invención; yFigure 2 corresponds to a perspective view of the pin of the invention; Y
La figura 3 corresponde a una vista en perspectiva del elemento de fijación intermedio representado en Ia figura primera en una posición de uso sobre el plato rotativo.Figure 3 corresponds to a perspective view of the intermediate fixing element shown in the first figure in a position of use on the rotating plate.
Descripción de una realización preferente.Description of a preferred embodiment.
A Ia vista de Ia comentada figura y de acuerdo con Ia numeración adoptada, se puede observar en las mismas una realización preferente aunque no limitativa de Ia invención, Ia cual consiste en una disposición de fijación para el acoplamiento de cuchillas en máquinas de cultivo agrícolas, en especial, máquinas para Ia labranza tipo fresadoras o rotocultivadoras.In view of the aforementioned figure and in accordance with the numbering adopted, a preferred but not limiting embodiment of the invention can be observed therein, which consists of a fixing arrangement for the coupling of blades in agricultural cultivation machines, especially milling or rotary cultivation machines.
Particularmente, las cuchillas están montadas sobre el diámetro de un plato giratorio, de ahí, el hecho de que el corte de las cuchillas sea rotativo, y estando el citado plato solidario a un eje de transmisión de dicho moviendo giratorio o rotativo.Particularly, the blades are mounted on the diameter of a turntable, hence, the fact that the cutting of the blades is rotary, and said said plate being integral to a transmission shaft of said rotating or rotary moving.
Tal y como se muestra en las figuras 1 , 2 y 3, Ia disposición de Ia invención se caracteriza por el hecho de comprender un elemento de fijación intermedio (1), formado por un cuerpo macizo, que une Ia cuchilla (2) con el plato rotativo (7); estando provisto dicho elemento de fijación intermedio (1) de unos medios de fijación (3) para su vinculación al plato rotativo (7); de medios de guía (4) para Ia inserción de Ia cuchilla (2) en el elemento de fijación intermedio (1); y de al menos un orificio (5) pasante transversalmente con respecto a Ia dirección de los medios de guía (4), destinado a Ia inserción de un pasador (6) extraíble que, en una posición de inserción de dicho pasador (6), actúa como elemento de retención de Ia cuchilla (2) respecto al elemento de fijación intermedio (1 ).As shown in Figures 1, 2 and 3, the arrangement of the invention is characterized by the fact of comprising an intermediate fixing element (1), formed by a solid body, which joins the blade (2) with the rotating plate (7); said intermediate fixing element (1) being provided with fixing means (3) for linking to the rotating plate (7); of guide means (4) for the insertion of the blade (2) in the intermediate fixing element (1); and of at least one hole (5) through transversely with respect to the direction of the guide means (4), intended for the insertion of a removable pin (6) which, in an insertion position of said pin (6), acts as a retention element of the blade (2) with respect to the intermediate fixing element (1).
De acuerdo con las características citadas, y en Ia realización particular, los medios de guía (4) para Ia inserción de Ia cuchilla (2) consisten en al menos dos ranuras enfrentadas dispuestas parcialmente de forma perimetral sobre Ia cara de contacto del cuerpo macizo con Ia cuchilla (2). Según otro aspecto de Ia invención, los medios de fijación (3) del elemento de fijación intermedio (1) al plato rotativo (7) consisten en al menos un taladro para Ia inserción de un tornillo de fijación que vincula el elemento de fijación intermedio (1) al plato rotativo.In accordance with the aforementioned characteristics, and in the particular embodiment, the guide means (4) for the insertion of the blade (2) consist of at least two facing grooves partially arranged perimetrically on the contact face of the solid body with The blade (2). According to another aspect of the invention, the fixing means (3) of the intermediate fixing element (1) to the rotating plate (7) consist of at least one hole for the insertion of a fixing screw that links the intermediate fixing element ( 1) to the rotating plate.
Ventajosamente, y gracias a las particularidades de Ia invención descrita, se obtiene una disposición que permite el intercambio o reposición de Ia cuchilla, ya sea por desgaste o rotura, con Ia simple actuación manual sobre el pasador que actúa como elemento de retención.Advantageously, and thanks to the particularities of the described invention, an arrangement is obtained that allows the exchange or replacement of the blade, either by wear or breakage, with the simple manual action on the pin that acts as a retention element.
Los detalles, las formas, las dimensiones y demás elementos accesorios, así como los materiales empleados en Ia fabricación de Ia disposición de fijación para el acoplamiento de cuchillas en máquinas de cultivo agrícolas de la invención podrán ser convenientemente sustituidos por otros que sean técnicamente equivalentes y no se aparten de Ia esencialidad de Ia invención ni del ámbito definido por las reivindicaciones que se incluyen a continuación. The details, shapes, dimensions and other accessory elements, as well as the materials used in the manufacture of the fixing arrangement for the coupling of blades in agricultural cultivation machines of the invention may be conveniently replaced by others that are technically equivalent and they do not depart from the essentiality of the invention or the scope defined by the claims that are included below.

Claims

Reivindicaciones Claims
1. Disposición de fijación para el acoplamiento de cuchillas en máquinas de cultivo agrícolas, en especial, maquinas para Ia labranza tipo fresadoras o rotocultivadoras, y donde las cuchillas están vinculadas sobre un plato rotativo propio de Ia máquina de cultivo, caracterizada por el hecho de comprender un elemento de fijación intermedio (1 ), formado por un cuerpo macizo, que une Ia cuchilla (2) con el plato rotativo (7); estando provisto dicho elemento de fijación intermedio (1 ) de unos medios de fijación (3) para su vinculación al plato rotativo (7); de medios de guía (4) para Ia inserción de Ia cuchilla (2) en el elemento de fijación intermedio (1); y de al menos un orificio (5) pasante transversalmente con respecto a Ia dirección de los medios de guía (4), destinado a Ia inserción de un pasador (6) extraíble que, en una posición de inserción de dicho pasador (6), actúa como elemento de retención de Ia cuchilla (2) respecto al el elemento de fijación intermedio (1 ).1. Fixing arrangement for the coupling of blades in agricultural cultivation machines, especially milling or rotary cultivation machines, and where the blades are linked on a rotating plate of the cultivation machine, characterized by the fact comprising an intermediate fixing element (1), formed by a solid body, which joins the blade (2) with the rotating plate (7); said intermediate fixing element (1) being provided with fixing means (3) for linking to the rotating plate (7); of guide means (4) for the insertion of the blade (2) in the intermediate fixing element (1); and of at least one hole (5) through transversely with respect to the direction of the guide means (4), intended for the insertion of a removable pin (6) which, in an insertion position of said pin (6), acts as a retention element of the blade (2) with respect to the intermediate fixing element (1).
2. Disposición de fijación para el acoplamiento de elementos de arado en máquinas de cultivo agrícolas, según Ia reivindicación anterior, caracterizado por el hecho de que los medios de guía (4) para Ia inserción de Ia cuchilla (2) consisten en al menos dos ranuras enfrentadas dispuestas parcialmente de forma perimetral sobre Ia cara de contacto del cuerpo macizo con Ia cuchilla (2).2. Fixing arrangement for coupling plow elements in agricultural cultivation machines, according to the preceding claim, characterized in that the guiding means (4) for the insertion of the blade (2) consist of at least two opposite grooves partially arranged perimetrically on the contact face of the solid body with the blade (2).
3. Disposición de fijación para el acoplamiento de elementos de arado en máquinas de cultivo agrícolas, según Ia reivindicación primera, caracterizada por el hecho de que los medios de fijación (3) del elemento de fijación intermedio (1 ) al plato rotativo (7) consisten en al menos un taladro para Ia inserción de un tornillo de fijación que vincula el elemento de fijación intermedio (1) al plato rotativo (7). 3. Fixing arrangement for coupling plow elements in agricultural cultivation machines, according to the first claim, characterized in that the fixing means (3) of the intermediate fixing element (1) to the rotating plate (7) they consist of at least one hole for the insertion of a fixing screw that links the intermediate fixing element (1) to the rotating plate (7).
PCT/ES2008/000411 2007-06-12 2008-06-05 Fastening device for coupling of blades in agricultural cultivation machines WO2008152167A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP08787593A EP2156722A4 (en) 2007-06-12 2008-06-05 Fastening device for coupling of blades in agricultural cultivation machines
US12/664,076 US8037943B2 (en) 2007-06-12 2008-06-05 Fastening device for coupling of blades in agricultural cultivation machines
BRPI0811327A BRPI0811327A2 (en) 2007-06-12 2008-06-05 "clamping arrangement for coupling blades on agricultural cultivators"
CA2690660A CA2690660C (en) 2007-06-12 2008-06-05 Fastening device for coupling of blades in agricultural cultivation machines
MA32457A MA31469B1 (en) 2007-06-12 2009-12-29 FIXING DEVICE FOR THE COUPLING OF BLADES ON AGRICULTURAL MACHINES

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESP200701613 2007-06-12
ES200701613A ES2288439B1 (en) 2007-06-12 2007-06-12 FIXING PROVISION FOR THE COUPLING OF BLADES IN AGRICULTURAL CULTURE MACHINES.

Publications (1)

Publication Number Publication Date
WO2008152167A1 true WO2008152167A1 (en) 2008-12-18

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ID=38858661

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Application Number Title Priority Date Filing Date
PCT/ES2008/000411 WO2008152167A1 (en) 2007-06-12 2008-06-05 Fastening device for coupling of blades in agricultural cultivation machines

Country Status (9)

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US (1) US8037943B2 (en)
EP (1) EP2156722A4 (en)
AR (1) AR066968A1 (en)
BR (1) BRPI0811327A2 (en)
CA (1) CA2690660C (en)
CL (1) CL2008001688A1 (en)
ES (1) ES2288439B1 (en)
MA (1) MA31469B1 (en)
WO (1) WO2008152167A1 (en)

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ITPD20120293A1 (en) 2012-10-09 2014-04-10 Valentini Antonio S R L MILLING UNIT FOR ROTARY TILLER MACHINE
ITPD20120324A1 (en) 2012-10-31 2014-05-01 Valentini Antonio S R L MILLING UNIT FOR ROTARY TILLER MACHINE
CA3009213A1 (en) 2017-06-23 2018-12-23 Natt Tools Group Inc. Quick-change system for a sweep

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FR2487157A1 (en) * 1980-07-28 1982-01-29 Mckay Ralph Ltd Mounting bracket for rotary hoe blade - has recess in bracket with sprung retaining pin for tool shaft
FR2501457A1 (en) * 1981-03-13 1982-09-17 Richard Francis Rotary soil-working implement - comprises circular plate carrying three radially-offset angled blades on each side
ES2190861A1 (en) * 1999-12-21 2003-08-16 Eurosystems S P A Base plate, to carry tools in harrow, is formed as metallic plate, with series of impressions, equally spaced around periphery, and formed in two parts
EP1222844A1 (en) * 2001-01-11 2002-07-17 Kuhn S.A. Tool for rotary harrow

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ES2288439B1 (en) 2009-03-01
US20100175901A1 (en) 2010-07-15
ES2288439A1 (en) 2008-01-01
AR066968A1 (en) 2009-09-23
EP2156722A1 (en) 2010-02-24
CA2690660A1 (en) 2008-12-18
CA2690660C (en) 2011-11-08
CL2008001688A1 (en) 2008-12-26
US8037943B2 (en) 2011-10-18
EP2156722A4 (en) 2012-01-11
BRPI0811327A2 (en) 2018-11-13
MA31469B1 (en) 2010-06-01

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